Window screen



Jan. 2, 1934.

1 RENZETTI 1,942,308

WINDOW SCREEN Filed Nov. 25, 1932 2 sheets-sheet 1 ./1 llomey Jan. 2, 1934. RENZET-rl 1,942,308

WINDOW SCREEN Filed NOV. 23,1932 2 Sheets-Sheet 2 j; O ff f4 @ff-4 l L f l 'HG f f Y nvenlor Homey Patented Jan. 2, 1934 .PATENT FFCE WINDOW SCREEN Luigi Renzetti,

Medford, Mass.

Application November 23, 1932 Serial No. 644,119

3 Claims.

This invention relate-s to the art of window screens and is an improvement in the art of roll screens.

The principal object of the present invention is to provide a window screen of the roll type which can be readily mounted and demounted as desired.

Another important object of the invention is to provide a window screen of the roll type wherein novel supporting means is provided for supporting a screen carrying spool in a spring tensioned manner.

Various other important objects and advantages of the invention will becomeapparent to the reader of the following specication.

In the drawings:-

Figure 1 represents a fragmentary side elevational view of a window with the novel screen installed thereon.

Fig. 2 represents a horizontal sectional view taken substantially on the line 2-2 of Fig. l.

Fig. 3 represents a fragmentary horizontal sectional view taken substantially on line 3-3 of Fig. 2.

Fig. 4 represents an enlarged fragmentary vertical sectional view taken substantially on line 4 4 of Fig. 1.

Fig. 5 represents a fragmentary perspective View of one end of the hood.

Fig. 6 represents a side elevational view of one of the supporting units.

Fig. 7 represents a side elevational view of the other supporting units.

Referring to the drawings wherein like 0 numerals designate like parts, it can be seen in Fig. l, that numeral 5 represents the sill of a window, while numerals 6 5 represents the side members of the window frame. Numeral 7 rep resents one of the sections to which the stiTening member 8 of the screen strip 9 is secured by suitable means 10.

A pair of supporting units for the screen is denoted by numerals 1l--12, the unit 11 consisting of a casing 13 having an opening 14 therein into which the round pintle 15 at one end of the screen spool 16 can extend to engage against the follower 17. A partition 18 is mounted in the casing 13 and between this and the front wall of the casing is a barrel 19 in which the said follower operates. Interposed between the follower 17 and the partition 18 is the compressible coiled spring 20, this through the agency of the follower 17 exerting pressure against one end of the spool 16 around which is wound the screen strip 9.

The above unit 11 is secured against one side member 6 of the Window frame, While the unit 12 is mounted against the other side member 6 of the window frame, the unit 12 consisting of a casing 21 having an opening 22 in the front wall thereof into which projects the pintle 23 having the polygonal shaped socket 24 therein for receiving the polygonal-shaped pintle projecting from the corresponding end of the aforementioned spool 16.

Numeral 25 represents an enclosure inside of the casing 21 for the spiral spring 26 which obviously has one end secured to the pintle 23 while its other end is secured to the enclosure so that the paying out of the screen strip 9 will result in the winding up of the spring so that release of the strip will insure a tensional winding up of the H strip on the spool.

Each of the casings 13-21 has a slot 27 in the front wall thereof for receiving a corresponding end extension 28 of the angularly-shaped hood or shield 29. Upstanding from each of the said units 11-12 is a guide 30. Each of the guides 30 is provided at its intermediate portion with an ear 31 through which a driven element 32 is disposed for engagement into the corresponding side member of the window frame. Each of the casings 13-21 is likewise provided with an ear 33 having a driven element 34 disposed therethrough for engagement into the corresponding side member 6 of the Window frame. Thus the units 11-12 as well as the guides 30 are detachably secured to the window and can be removed at any time, as can the stiifening member 8 be removed in view of the detachable form of connection 10.

While the foregoing specification sets forth the invention in specific terms, it is to be understood that numerous changes in the shape, size and materials may be resorted to without departing from the spirit and scope of the invention as claimed hereinafter.

Having thus described my invention, what I claim as new is:-

1. In a roll screen window construction including a spool, a pair of spool supporting units, a spool winding spring in one of the units, and longitudinal pressing means in the other unit for a spool.

2. In a roll screen window construction including a spool, a pair of spool supporting units, a spool winding spring in one of the units, longitudinal pressing means in the other unit for a spool, each of the said units being provided with spool winding spring in one of the units and a hood for disposition over the spool and provided with means at its ends complementary to the said units whereby the said hood can be detachably connected to the said unit.

LUIGI RENZETTI. 

